209 citations · 646 across the 17 of their papers we have counts for
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gr-qc2012★ 55 cited
A note on instabilities of extremal black holes under scalar perturbations from afar
Stefanos Aretakis
In previous work of the author it was shown that instabilities of solutions to the wave equation develop asymptotically along the event horizon of extremal Kerr provided a certain…
gr-qc2012
Horizon Instability of Extremal Black Holes
Stefanos Aretakis
We show that axisymmetric extremal horizons are unstable under linear scalar perturbations. Specifically, we show that translation invariant derivatives of generic solutions to the…